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1) (x - 7) - 2 (3x + 5 ) = 3
2) (2t - (3t +1 )= 6
3.) (x + 1 ) - (2x - 1) = 1
4) x = 1 - 3 ( x +1)
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1)
(x - 7) - 2 (3x + 5 ) = 3
x -7 -6x -10 =3
-5x = 3 +17
-5x = 20 / : (-5)
x = -4
spr .
L= (-4 -7) - 2(3 *-4 +5) = -11 +14 = 3
P=3
L=P
2)
2t - (3t +1 )= 6
2t -3t -1 = 6
-t = 6+1
-t = 7 /* (-1)
t = -7
spr.
L = 2 *(-7) - (3 * -7 + 1) = -14 + 20 = 6
P=6
L=P
3.)
(x + 1 ) - (2x - 1) = 1
x + 1 - 2x + 1 = 1
-x = 1 -2
-x = -1 /* (-1)
x=1
L= (1+1) - (2 -1) = 2-1=1
P=1
L=P
4)
x = 1 - 3 ( x +1)
x = 1-3x -3
x + 3x = -2
4x = -2 / : 4
x = - 1/2
L= -1/2
P = 1 - 3 (-1/2 +1) =1 - 3/2 = 1- 1 i 1/2 = -1/2
L=P
1.
(x-7)-2(3x+5)=3
x-7-6x-10=3
-5x=3+17
-5x=20/:(-5)
x=-4
L=(-4-7)-2(3*-4+5)=-11-2*(-7)=-11+14=3=P
2.
(2t-(3t+1)=6
2t-3t-1=6
-t=7/: (-1)
t=-7
L=(2*-7-(3*-7+1)=-14-(-20)=6=P
3.
(x+1)-(2x-1)=1
x+1-2x+1=1
-x=-1/:(-1)
x=1
L=(1+1)-(2*1-1)=2-1=1=P
4.
x=1-3(x+1)
x=1-3x-3
x+3x=-2
4x=-2/:4
x=-2/4
x=-1/2
L=-1/2=1-3(-1/2+1)=1-3*1/2= 1-3/2=-1/2